/*  Bluetooth Mesh */

/*
 * Copyright (c) 2017 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include "syscfg/syscfg.h"
#define MESH_LOG_MODULE BLE_MESH_MODEL_LOG

#if (MYNEWT_VAL(BLE_MESH_CFG_CLI) && MYNEWT_VAL(BLE_MESH))

#include "mesh/mesh.h"

#include <string.h>
#include <errno.h>
#include <stdbool.h>

#include "net.h"
#include "foundation.h"

#define CID_NVAL 0xffff

/* 2 byte dummy opcode for getting compile time buffer sizes. */
#define DUMMY_2_BYTE_OP BT_MESH_MODEL_OP_2(0xff, 0xff)

struct comp_data {
    u8_t *status;
    struct os_mbuf *comp;
};

static s32_t msg_timeout = K_SECONDS(5);

static struct bt_mesh_cfg_cli *cli;

static void comp_data_status(struct bt_mesh_model *model,
                             struct bt_mesh_msg_ctx *ctx,
                             struct os_mbuf *buf)
{
    struct comp_data *param;
    size_t to_copy;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_DEV_COMP_DATA_STATUS) {
        BT_WARN("Unexpected Composition Data Status");
        return;
    }

    param = cli->op_param;
    *(param->status) = net_buf_simple_pull_u8(buf);
    to_copy  = min(net_buf_simple_tailroom(param->comp), buf->om_len);
    net_buf_simple_add_mem(param->comp, buf->om_data, to_copy);
    k_sem_give(&cli->op_sync);
}

static void state_status_u8(struct bt_mesh_model *model,
                            struct bt_mesh_msg_ctx *ctx,
                            struct os_mbuf *buf,
                            u32_t expect_status)
{
    u8_t *status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != expect_status) {
        BT_WARN("Unexpected Status (0x%08x != 0x%08x)",
                (unsigned) cli->op_pending, (unsigned) expect_status);
        return;
    }

    status = cli->op_param;
    *status = net_buf_simple_pull_u8(buf);
    k_sem_give(&cli->op_sync);
}

static void beacon_status(struct bt_mesh_model *model,
                          struct bt_mesh_msg_ctx *ctx,
                          struct os_mbuf *buf)
{
    state_status_u8(model, ctx, buf, OP_BEACON_STATUS);
}

static void ttl_status(struct bt_mesh_model *model,
                       struct bt_mesh_msg_ctx *ctx,
                       struct os_mbuf *buf)
{
    state_status_u8(model, ctx, buf, OP_DEFAULT_TTL_STATUS);
}

static void friend_status(struct bt_mesh_model *model,
                          struct bt_mesh_msg_ctx *ctx,
                          struct os_mbuf *buf)
{
    state_status_u8(model, ctx, buf, OP_FRIEND_STATUS);
}

static void gatt_proxy_status(struct bt_mesh_model *model,
                              struct bt_mesh_msg_ctx *ctx,
                              struct os_mbuf *buf)
{
    state_status_u8(model, ctx, buf, OP_GATT_PROXY_STATUS);
}

struct relay_param {
    u8_t *status;
    u8_t *transmit;
};

static void relay_status(struct bt_mesh_model *model,
                         struct bt_mesh_msg_ctx *ctx,
                         struct os_mbuf *buf)
{
    struct relay_param *param;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_RELAY_STATUS) {
        BT_WARN("Unexpected Relay Status message");
        return;
    }

    param = cli->op_param;
    *param->status = net_buf_simple_pull_u8(buf);
    *param->transmit = net_buf_simple_pull_u8(buf);
    k_sem_give(&cli->op_sync);
}

struct net_key_param {
    u8_t *status;
    u16_t net_idx;
};

static void net_key_status(struct bt_mesh_model *model,
                           struct bt_mesh_msg_ctx *ctx,
                           struct os_mbuf *buf)
{
    struct net_key_param *param;
    u16_t net_idx, app_idx;
    u8_t status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_NET_KEY_STATUS) {
        BT_WARN("Unexpected Net Key Status message");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    key_idx_unpack(buf, &net_idx, &app_idx);
    param = cli->op_param;

    if(param->net_idx != net_idx) {
        BT_WARN("Net Key Status key index does not match");
        return;
    }

    if(param->status) {
        *param->status = status;
    }

    k_sem_give(&cli->op_sync);
}

struct net_key_list_param {
    uint16_t *keys;
    size_t *key_cnt;
};

static void net_key_list(struct bt_mesh_model *model,
                         struct bt_mesh_msg_ctx *ctx,
                         struct os_mbuf *buf)
{
    struct net_key_list_param *param;
    int i;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_NET_KEY_LIST) {
        BT_WARN("Unexpected Net Key List message");
        return;
    }

    param = cli->op_param;

    for(i = 0; i < *param->key_cnt && buf->om_len >= 3; i += 2) {
        key_idx_unpack(buf, &param->keys[i], &param->keys[i + 1]);
    }

    if(i < *param->key_cnt && buf->om_len >= 2) {
        param->keys[i++] = net_buf_simple_pull_le16(buf) & 0xfff;
    }

    *param->key_cnt = i;
    k_sem_give(&cli->op_sync);
}

static void node_reset_status(struct bt_mesh_model *model,
                              struct bt_mesh_msg_ctx *ctx, struct os_mbuf *buf)
{
    bool *param = NULL;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x",
           ctx->net_idx, ctx->app_idx, ctx->addr);

    if(cli->op_pending != OP_NODE_RESET_STATUS) {
        BT_WARN("Unexpected Node Reset Status message");
        return;
    }

    param = cli->op_param;

    if(param) {
        *param = true;
    }

    k_sem_give(&cli->op_sync);
}

struct app_key_param {
    u8_t *status;
    u16_t net_idx;
    u16_t app_idx;
};

static void app_key_status(struct bt_mesh_model *model,
                           struct bt_mesh_msg_ctx *ctx,
                           struct os_mbuf *buf)
{
    struct app_key_param *param;
    u16_t net_idx, app_idx;
    u8_t status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_APP_KEY_STATUS) {
        BT_WARN("Unexpected App Key Status message");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    key_idx_unpack(buf, &net_idx, &app_idx);
    param = cli->op_param;

    if(param->net_idx != net_idx || param->app_idx != app_idx) {
        BT_WARN("App Key Status key indices did not match");
        return;
    }

    if(param->status) {
        *param->status = status;
    }

    k_sem_give(&cli->op_sync);
}

struct app_key_list_param {
    uint16_t net_idx;
    uint8_t *status;
    uint16_t *keys;
    size_t *key_cnt;
};

static void app_key_list(struct bt_mesh_model *model,
                         struct bt_mesh_msg_ctx *ctx,
                         struct os_mbuf *buf)
{
    struct app_key_list_param *param;
    uint16_t net_idx;
    uint8_t status;
    int i;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_APP_KEY_LIST) {
        BT_WARN("Unexpected App Key List message");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    net_idx = net_buf_simple_pull_le16(buf) & 0xfff;
    param = cli->op_param;

    if(param->net_idx != net_idx) {
        BT_WARN("App Key List Net Key index did not match");
        return;
    }

    for(i = 0; i < *param->key_cnt && buf->om_len >= 3; i += 2) {
        key_idx_unpack(buf, &param->keys[i], &param->keys[i + 1]);
    }

    if(i < *param->key_cnt && buf->om_len >= 2) {
        param->keys[i++] = net_buf_simple_pull_le16(buf) & 0xfff;
    }

    *param->key_cnt = i;

    if(param->status) {
        *param->status = status;
    }

    k_sem_give(&cli->op_sync);
}

struct mod_app_param {
    u8_t *status;
    u16_t elem_addr;
    u16_t mod_app_idx;
    u16_t mod_id;
    u16_t cid;
};

static void mod_app_status(struct bt_mesh_model *model,
                           struct bt_mesh_msg_ctx *ctx,
                           struct os_mbuf *buf)
{
    u16_t elem_addr, mod_app_idx, mod_id, cid;
    struct mod_app_param *param;
    u8_t status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_MOD_APP_STATUS) {
        BT_WARN("Unexpected Model App Status message");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    elem_addr = net_buf_simple_pull_le16(buf);
    mod_app_idx = net_buf_simple_pull_le16(buf);

    if(buf->om_len >= 4) {
        cid = net_buf_simple_pull_le16(buf);
    } else {
        cid = CID_NVAL;
    }

    mod_id = net_buf_simple_pull_le16(buf);
    param = cli->op_param;

    if(param->elem_addr != elem_addr ||
            param->mod_app_idx != mod_app_idx || param->mod_id != mod_id ||
            param->cid != cid) {
        BT_WARN("Model App Status parameters did not match");
        return;
    }

    if(param->status) {
        *param->status = status;
    }

    k_sem_give(&cli->op_sync);
}

struct mod_member_list_param {
    uint8_t *status;
    uint16_t elem_addr;
    uint16_t mod_id;
    uint16_t cid;
    uint16_t *members;
    size_t *member_cnt;
};

static void mod_member_list_handle(struct bt_mesh_msg_ctx *ctx,
                                   struct os_mbuf *buf, bool vnd)
{
    struct mod_member_list_param *param;
    uint16_t elem_addr, mod_id, cid;
    uint8_t status;
    int i;
    status = net_buf_simple_pull_u8(buf);
    elem_addr = net_buf_simple_pull_le16(buf);

    if(vnd) {
        cid = net_buf_simple_pull_le16(buf);
    }

    mod_id = net_buf_simple_pull_le16(buf);
    param = cli->op_param;

    if(param->elem_addr != elem_addr || param->mod_id != mod_id ||
            (vnd && param->cid != cid)) {
        BT_WARN("Model Member List parameters did not match");
        return;
    }

    if(buf->om_len % 2) {
        BT_WARN("Model Member List invalid length");
        return;
    }

    for(i = 0; i < *param->member_cnt && buf->om_len; i++) {
        param->members[i] = net_buf_simple_pull_le16(buf);
    }

    *param->member_cnt = i;

    if(param->status) {
        param->status[0] = status;
    }

    k_sem_give(&cli->op_sync);
}

static void mod_app_list(struct bt_mesh_model *model,
                         struct bt_mesh_msg_ctx *ctx,
                         struct os_mbuf *buf)
{
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_SIG_MOD_APP_LIST) {
        BT_WARN("Unexpected Model App List message");
        return;
    }

    mod_member_list_handle(ctx, buf, false);
}

static void mod_app_list_vnd(struct bt_mesh_model *model,
                             struct bt_mesh_msg_ctx *ctx,
                             struct os_mbuf *buf)
{
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_VND_MOD_APP_LIST) {
        BT_WARN("Unexpected Model App List Vendor message");
        return;
    }

    mod_member_list_handle(ctx, buf, true);
}

struct mod_pub_param {
    u16_t                       mod_id;
    u16_t                       cid;
    u16_t                       elem_addr;
    u8_t                       *status;
    struct bt_mesh_cfg_mod_pub *pub;
};

static void mod_pub_status(struct bt_mesh_model *model,
                           struct bt_mesh_msg_ctx *ctx,
                           struct os_mbuf *buf)
{
    u16_t mod_id, cid, elem_addr;
    struct mod_pub_param *param;
    u8_t status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_MOD_PUB_STATUS) {
        BT_WARN("Unexpected Model Pub Status message");
        return;
    }

    param = cli->op_param;

    if(param->cid != CID_NVAL) {
        if(buf->om_len < 14) {
            BT_WARN("Unexpected Mod Pub Status with SIG Model");
            return;
        }

        cid = sys_get_le16(&buf->om_data[10]);
        mod_id = sys_get_le16(&buf->om_data[12]);
    } else {
        if(buf->om_len > 12) {
            BT_WARN("Unexpected Mod Pub Status with Vendor Model");
            return;
        }

        cid = CID_NVAL;
        mod_id = sys_get_le16(&buf->om_data[10]);
    }

    if(mod_id != param->mod_id || cid != param->cid) {
        BT_WARN("Mod Pub Model ID or Company ID mismatch");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    elem_addr = net_buf_simple_pull_le16(buf);

    if(elem_addr != param->elem_addr) {
        BT_WARN("Model Pub Status for unexpected element (0x%04x)",
                elem_addr);
        return;
    }

    if(param->status) {
        *param->status = status;
    }

    if(param->pub) {
        param->pub->addr = net_buf_simple_pull_le16(buf);
        param->pub->app_idx = net_buf_simple_pull_le16(buf);
        param->pub->cred_flag = (param->pub->app_idx & BIT(12));
        param->pub->app_idx &= BIT_MASK(12);
        param->pub->ttl = net_buf_simple_pull_u8(buf);
        param->pub->period = net_buf_simple_pull_u8(buf);
        param->pub->transmit = net_buf_simple_pull_u8(buf);
    }

    k_sem_give(&cli->op_sync);
}

struct mod_sub_param {
    u8_t *status;
    u16_t elem_addr;
    u16_t *sub_addr;
    u16_t *expect_sub;
    u16_t mod_id;
    u16_t cid;
};

static void mod_sub_status(struct bt_mesh_model *model,
                           struct bt_mesh_msg_ctx *ctx,
                           struct os_mbuf *buf)
{
    u16_t elem_addr, sub_addr, mod_id, cid;
    struct mod_sub_param *param;
    u8_t status;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_MOD_SUB_STATUS) {
        BT_WARN("Unexpected Model Subscription Status message");
        return;
    }

    status = net_buf_simple_pull_u8(buf);
    elem_addr = net_buf_simple_pull_le16(buf);
    sub_addr = net_buf_simple_pull_le16(buf);

    if(buf->om_len >= 4) {
        cid = net_buf_simple_pull_le16(buf);
    } else {
        cid = CID_NVAL;
    }

    mod_id = net_buf_simple_pull_le16(buf);
    param = cli->op_param;

    if(param->elem_addr != elem_addr || param->mod_id != mod_id ||
            (param->expect_sub && *param->expect_sub != sub_addr) ||
            param->cid != cid) {
        BT_WARN("Model Subscription Status parameters did not match");
        return;
    }

    if(param->sub_addr) {
        *param->sub_addr = sub_addr;
    }

    if(param->status) {
        *param->status = status;
    }

    k_sem_give(&cli->op_sync);
}

static void mod_sub_list(struct bt_mesh_model *model,
                         struct bt_mesh_msg_ctx *ctx,
                         struct os_mbuf *buf)
{
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_MOD_SUB_LIST) {
        BT_WARN("Unexpected Model Subscription List message");
        return;
    }

    mod_member_list_handle(ctx, buf, false);
}

static void mod_sub_list_vnd(struct bt_mesh_model *model,
                             struct bt_mesh_msg_ctx *ctx,
                             struct os_mbuf *buf)
{
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_MOD_SUB_LIST_VND) {
        BT_WARN("Unexpected Model Subscription List Vendor message");
        return;
    }

    mod_member_list_handle(ctx, buf, true);
}

struct hb_sub_param {
    u8_t *status;
    struct bt_mesh_cfg_hb_sub *sub;
};

static void hb_sub_status(struct bt_mesh_model *model,
                          struct bt_mesh_msg_ctx *ctx,
                          struct os_mbuf *buf)
{
    struct hb_sub_param *param;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_HEARTBEAT_SUB_STATUS) {
        BT_WARN("Unexpected Heartbeat Subscription Status message");
        return;
    }

    param = cli->op_param;
    *param->status = net_buf_simple_pull_u8(buf);
    param->sub->src = net_buf_simple_pull_le16(buf);
    param->sub->dst = net_buf_simple_pull_le16(buf);
    param->sub->period = net_buf_simple_pull_u8(buf);
    param->sub->count = net_buf_simple_pull_u8(buf);
    param->sub->min = net_buf_simple_pull_u8(buf);
    param->sub->max = net_buf_simple_pull_u8(buf);
    k_sem_give(&cli->op_sync);
}

struct hb_pub_param {
    u8_t *status;
    struct bt_mesh_cfg_hb_pub *pub;
};

static void hb_pub_status(struct bt_mesh_model *model,
                          struct bt_mesh_msg_ctx *ctx,
                          struct os_mbuf *buf)
{
    struct hb_pub_param *param;
    BT_DBG("net_idx 0x%04x app_idx 0x%04x src 0x%04x len %u: %s",
           ctx->net_idx, ctx->app_idx, ctx->addr, buf->om_len,
           bt_hex(buf->om_data, buf->om_len));

    if(cli->op_pending != OP_HEARTBEAT_PUB_STATUS) {
        BT_WARN("Unexpected Heartbeat Publication Status message");
        return;
    }

    param = cli->op_param;
    *param->status = net_buf_simple_pull_u8(buf);

    if(param->pub) {
        param->pub->dst = net_buf_simple_pull_le16(buf);
        param->pub->count = net_buf_simple_pull_u8(buf);
        param->pub->period = net_buf_simple_pull_u8(buf);
        param->pub->ttl = net_buf_simple_pull_u8(buf);
        param->pub->feat = net_buf_simple_pull_u8(buf);
        param->pub->net_idx = net_buf_simple_pull_u8(buf);
    }

    k_sem_give(&cli->op_sync);
}

const struct bt_mesh_model_op bt_mesh_cfg_cli_op[] = {
    { OP_DEV_COMP_DATA_STATUS,   15,  comp_data_status },
    { OP_BEACON_STATUS,          1,   beacon_status },
    { OP_DEFAULT_TTL_STATUS,     1,   ttl_status },
    { OP_FRIEND_STATUS,          1,   friend_status },
    { OP_GATT_PROXY_STATUS,      1,   gatt_proxy_status },
    { OP_RELAY_STATUS,           2,   relay_status },
    { OP_NET_KEY_STATUS,         3,   net_key_status },
    { OP_NET_KEY_LIST,           0,   net_key_list },
    { OP_APP_KEY_STATUS,         4,   app_key_status },
    { OP_APP_KEY_LIST,           3,   app_key_list },
    { OP_MOD_APP_STATUS,         7,   mod_app_status },
    { OP_SIG_MOD_APP_LIST,       5,   mod_app_list},
    { OP_VND_MOD_APP_LIST,       7,   mod_app_list_vnd},
    { OP_MOD_PUB_STATUS,         12,  mod_pub_status },
    { OP_MOD_SUB_STATUS,         7,   mod_sub_status },
    { OP_MOD_SUB_LIST,           5,   mod_sub_list},
    { OP_MOD_SUB_LIST_VND,       7,   mod_sub_list_vnd},
    { OP_HEARTBEAT_SUB_STATUS,   9,   hb_sub_status },
    { OP_HEARTBEAT_PUB_STATUS,   10,  hb_pub_status },
    { OP_NODE_RESET_STATUS,      0,   node_reset_status},
    BT_MESH_MODEL_OP_END,
};

static int cfg_cli_init(struct bt_mesh_model *model)
{
    BT_DBG("");

    if(!bt_mesh_model_in_primary(model)) {
        BT_ERR("Configuration Client only allowed in primary element");
        return -EINVAL;
    }

    if(!model->user_data) {
        BT_ERR("No Configuration Client context provided");
        return -EINVAL;
    }

    cli = model->user_data;
    cli->model = model;
    /*
     * Configuration Model security is device-key based and both the local
     * and remote keys are allowed to access this model.
     */
    model->keys[0] = BT_MESH_KEY_DEV_ANY;
    k_sem_init(&cli->op_sync, 0, 1);
    return 0;
}
static int cfg_cli_deinit(struct bt_mesh_model *model)
{
    if(!cli) { return -EALREADY; }

    BT_DBG("");
    k_sem_deinit(&cli->op_sync);
    cli = NULL;
    return 0;
}


const struct bt_mesh_model_cb bt_mesh_cfg_cli_cb = {
    .init = cfg_cli_init,
    .deinit = cfg_cli_deinit,
};

static int cli_prepare(void *param, u32_t op)
{
    if(!cli) {
        BT_ERR("No available Configuration Client context!");
        return -EINVAL;
    }

    if(cli->op_pending) {
        BT_WARN("Another synchronous operation pending");
        return -EBUSY;
    }

    cli->op_param = param;
    cli->op_pending = op;
    return 0;
}

static void cli_reset(void)
{
    cli->op_pending = 0;
    cli->op_param = NULL;
}

static int cli_wait(void)
{
    int err;
    err = k_sem_take(&cli->op_sync, msg_timeout);
    cli_reset();
    return err;
}

int bt_mesh_cfg_comp_data_get(u16_t net_idx, u16_t addr, u8_t page,
                              u8_t *status, struct os_mbuf *comp)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_DEV_COMP_DATA_GET, 1);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct comp_data param = {
        .status = status,
        .comp = comp,
    };
    int err;
    err = cli_prepare(&param, OP_DEV_COMP_DATA_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_DEV_COMP_DATA_GET);
    net_buf_simple_add_u8(msg, page);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

static int get_state_u8(u16_t net_idx, u16_t addr, u32_t op, u32_t rsp,
                        u8_t *val)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(DUMMY_2_BYTE_OP, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    int err;
    err = cli_prepare(val, rsp);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, op);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

static int set_state_u8(u16_t net_idx, u16_t addr, u32_t op, u32_t rsp,
                        u8_t new_val, u8_t *val)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(DUMMY_2_BYTE_OP, 1);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    int err;
    err = cli_prepare(val, rsp);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, op);
    net_buf_simple_add_u8(msg, new_val);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_beacon_get(u16_t net_idx, u16_t addr, u8_t *status)
{
    return get_state_u8(net_idx, addr, OP_BEACON_GET, OP_BEACON_STATUS,
                        status);
}

int bt_mesh_cfg_beacon_set(u16_t net_idx, u16_t addr, u8_t val, u8_t *status)
{
    return set_state_u8(net_idx, addr, OP_BEACON_SET, OP_BEACON_STATUS,
                        val, status);
}

int bt_mesh_cfg_ttl_get(u16_t net_idx, u16_t addr, u8_t *ttl)
{
    return get_state_u8(net_idx, addr, OP_DEFAULT_TTL_GET,
                        OP_DEFAULT_TTL_STATUS, ttl);
}

int bt_mesh_cfg_ttl_set(u16_t net_idx, u16_t addr, u8_t val, u8_t *ttl)
{
    return set_state_u8(net_idx, addr, OP_DEFAULT_TTL_SET,
                        OP_DEFAULT_TTL_STATUS, val, ttl);
}

int bt_mesh_cfg_friend_get(u16_t net_idx, u16_t addr, u8_t *status)
{
    return get_state_u8(net_idx, addr, OP_FRIEND_GET,
                        OP_FRIEND_STATUS, status);
}

int bt_mesh_cfg_friend_set(u16_t net_idx, u16_t addr, u8_t val, u8_t *status)
{
    return set_state_u8(net_idx, addr, OP_FRIEND_SET, OP_FRIEND_STATUS,
                        val, status);
}

int bt_mesh_cfg_gatt_proxy_get(u16_t net_idx, u16_t addr, u8_t *status)
{
    return get_state_u8(net_idx, addr, OP_GATT_PROXY_GET,
                        OP_GATT_PROXY_STATUS, status);
}

int bt_mesh_cfg_gatt_proxy_set(u16_t net_idx, u16_t addr, u8_t val,
                               u8_t *status)
{
    return set_state_u8(net_idx, addr, OP_GATT_PROXY_SET,
                        OP_GATT_PROXY_STATUS, val, status);
}
int bt_mesh_cfg_net_transmit_set(uint16_t net_idx, uint16_t addr,
                                 uint8_t val, uint8_t *transmit)
{
    return set_state_u8(net_idx, addr, OP_NET_TRANSMIT_SET,
                        OP_NET_TRANSMIT_STATUS, val, transmit);
}

int bt_mesh_cfg_net_transmit_get(uint16_t net_idx, uint16_t addr,
                                 uint8_t *transmit)
{
    return get_state_u8(net_idx, addr, OP_NET_TRANSMIT_GET,
                        OP_NET_TRANSMIT_STATUS, transmit);
}

int bt_mesh_cfg_relay_get(u16_t net_idx, u16_t addr, u8_t *status,
                          u8_t *transmit)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_RELAY_GET, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct relay_param param = {
        .status = status,
        .transmit = transmit,
    };
    int err;
    err = cli_prepare(&param, OP_RELAY_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_RELAY_GET);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_relay_set(u16_t net_idx, u16_t addr, u8_t new_relay,
                          u8_t new_transmit, u8_t *status, u8_t *transmit)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_RELAY_SET, 2);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct relay_param param = {
        .status = status,
        .transmit = transmit,
    };
    int err;
    err = cli_prepare(&param, OP_RELAY_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_RELAY_SET);
    net_buf_simple_add_u8(msg, new_relay);
    net_buf_simple_add_u8(msg, new_transmit);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_net_key_add(u16_t net_idx, u16_t addr, u16_t key_net_idx,
                            const u8_t net_key[16], u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_NET_KEY_ADD, 18);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct net_key_param param = {
        .status = status,
        .net_idx = key_net_idx,
    };
    int err;
    err = cli_prepare(&param, OP_NET_KEY_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_NET_KEY_ADD);
    net_buf_simple_add_le16(msg, key_net_idx);
    net_buf_simple_add_mem(msg, net_key, 16);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_net_key_get(uint16_t net_idx, uint16_t addr, uint16_t *keys,
                            size_t *key_cnt)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_NET_KEY_GET, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct net_key_list_param param = {
        .keys = keys,
        .key_cnt = key_cnt,
    };
    int err;
    err = cli_prepare(&param, OP_NET_KEY_LIST);

    if(err) {
        return err;
    }

    bt_mesh_model_msg_init(msg, OP_NET_KEY_GET);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        return err;
    }

    os_mbuf_free_chain(msg);
    return cli_wait();
}

int bt_mesh_cfg_net_key_del(uint16_t net_idx, uint16_t addr,
                            uint16_t key_net_idx, uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_NET_KEY_DEL, 2);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct net_key_param param = {
        .status = status,
        .net_idx = key_net_idx,
    };
    int err;
    err = cli_prepare(&param, OP_NET_KEY_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_NET_KEY_DEL);
    net_buf_simple_add_le16(msg, key_net_idx);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_app_key_add(u16_t net_idx, u16_t addr, u16_t key_net_idx,
                            u16_t key_app_idx, const u8_t app_key[16],
                            u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_APP_KEY_ADD, 19);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct app_key_param param = {
        .status = status,
        .net_idx = key_net_idx,
        .app_idx = key_app_idx,
    };
    int err;
    err = cli_prepare(&param, OP_APP_KEY_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_APP_KEY_ADD);
    key_idx_pack(msg, key_net_idx, key_app_idx);
    net_buf_simple_add_mem(msg, app_key, 16);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_node_reset(uint16_t net_idx, uint16_t addr, bool *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_NODE_RESET, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    int err;

    if(status) {
        *status = false;
    }

    err = cli_prepare(status, OP_NODE_RESET_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_NODE_RESET);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);

    if(err) {
        return err;
    } else {
        return 0;
    }
}

int bt_mesh_cfg_app_key_get(uint16_t net_idx, uint16_t addr, uint16_t key_net_idx,
                            uint8_t *status, uint16_t *keys, size_t *key_cnt)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_APP_KEY_GET, 2);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct app_key_list_param param = {
        .net_idx = key_net_idx,
        .status = status,
        .keys = keys,
        .key_cnt = key_cnt,
    };
    int err;
    err = cli_prepare(&param, OP_APP_KEY_LIST);

    if(err) {
        os_mbuf_free_chain(msg);
        return err;
    }

    bt_mesh_model_msg_init(msg, OP_APP_KEY_GET);
    net_buf_simple_add_le16(msg, key_net_idx);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        os_mbuf_free_chain(msg);
        cli_reset();
        return err;
    }

    os_mbuf_free_chain(msg);
    return cli_wait();
}

int bt_mesh_cfg_app_key_del(uint16_t net_idx, uint16_t addr,
                            uint16_t key_net_idx, uint16_t key_app_idx, uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_APP_KEY_DEL, 3);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct app_key_param param = {
        .status = status,
        .net_idx = key_net_idx,
        .app_idx = key_app_idx,
    };
    int err;
    err = cli_prepare(&param, OP_APP_KEY_STATUS);

    if(err) {
        os_mbuf_free_chain(msg);
        return err;
    }

    bt_mesh_model_msg_init(msg, OP_APP_KEY_DEL);
    key_idx_pack(msg, key_net_idx, key_app_idx);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        os_mbuf_free_chain(msg);
        cli_reset();
        return err;
    }

    if(!status) {
        cli_reset();
        os_mbuf_free_chain(msg);
        return 0;
    }

    os_mbuf_free_chain(msg);
    return cli_wait();
}

static int mod_app_bind(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                        uint16_t mod_app_idx, uint16_t mod_id, uint16_t cid,
                        uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_MOD_APP_BIND, 8);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_app_param param = {
        .status = status,
        .elem_addr = elem_addr,
        .mod_app_idx = mod_app_idx,
        .mod_id = mod_id,
        .cid = cid,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_APP_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_MOD_APP_BIND);
    net_buf_simple_add_le16(msg, elem_addr);
    net_buf_simple_add_le16(msg, mod_app_idx);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_app_bind(u16_t net_idx, u16_t addr, u16_t elem_addr,
                             u16_t mod_app_idx, u16_t mod_id, u8_t *status)
{
    return mod_app_bind(net_idx, addr, elem_addr, mod_app_idx, mod_id,
                        CID_NVAL, status);
}

int bt_mesh_cfg_mod_app_bind_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                 u16_t mod_app_idx, u16_t mod_id, u16_t cid,
                                 u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_app_bind(net_idx, addr, elem_addr, mod_app_idx, mod_id, cid,
                        status);
}

static int mod_app_unbind(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                          uint16_t mod_app_idx, uint16_t mod_id, uint16_t cid,
                          uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_MOD_APP_UNBIND, 8);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_app_param param = {
        .status = status,
        .elem_addr = elem_addr,
        .mod_app_idx = mod_app_idx,
        .mod_id = mod_id,
        .cid = cid,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_APP_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_MOD_APP_UNBIND);
    net_buf_simple_add_le16(msg, elem_addr);
    net_buf_simple_add_le16(msg, mod_app_idx);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        err = 0;
        goto done;
    }

done:
    os_mbuf_free_chain(msg);

    if(err) {
        return err;
    } else {
        return cli_wait();
    }
}

int bt_mesh_cfg_mod_app_unbind(uint16_t net_idx, uint16_t addr,
                               uint16_t elem_addr, uint16_t mod_app_idx,
                               uint16_t mod_id, uint8_t *status)
{
    return mod_app_unbind(net_idx, addr, elem_addr, mod_app_idx, mod_id,
                          CID_NVAL, status);
}

int bt_mesh_cfg_mod_app_unbind_vnd(uint16_t net_idx, uint16_t addr,
                                   uint16_t elem_addr, uint16_t mod_app_idx,
                                   uint16_t mod_id, uint16_t cid, uint8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_app_unbind(net_idx, addr, elem_addr, mod_app_idx,
                          mod_id, cid, status);
}

static int mod_member_list_get(uint32_t op, uint32_t expect_op, uint16_t net_idx,
                               uint16_t addr, uint16_t elem_addr, uint16_t mod_id,
                               uint16_t cid, uint8_t *status, uint16_t *apps,
                               size_t *app_cnt)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(DUMMY_2_BYTE_OP, 6);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_member_list_param param = {
        .status = status,
        .elem_addr = elem_addr,
        .mod_id = mod_id,
        .cid = cid,
        .members = apps,
        .member_cnt = app_cnt,
    };
    int err;
    err = cli_prepare(&param, expect_op);

    if(err) {
        goto done;
    }

    BT_DBG("net_idx 0x%04x addr 0x%04x elem_addr 0x%04x",
           net_idx, addr, elem_addr);
    BT_DBG("mod_id 0x%04x cid 0x%04x op: %x", mod_id, cid, op);
    bt_mesh_model_msg_init(msg, op);
    net_buf_simple_add_le16(msg, elem_addr);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_app_get(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                            uint16_t mod_id, uint8_t *status, uint16_t *apps,
                            size_t *app_cnt)
{
    return mod_member_list_get(OP_SIG_MOD_APP_GET, OP_SIG_MOD_APP_LIST,
                               net_idx, addr, elem_addr, mod_id, CID_NVAL,
                               status, apps, app_cnt);
}

int bt_mesh_cfg_mod_app_get_vnd(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                                uint16_t mod_id, uint16_t cid, uint8_t *status,
                                uint16_t *apps, size_t *app_cnt)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_member_list_get(OP_VND_MOD_APP_GET, OP_VND_MOD_APP_LIST,
                               net_idx, addr, elem_addr, mod_id, CID_NVAL,
                               status, apps, app_cnt);
}

static int mod_sub(uint32_t op, uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                   uint16_t sub_addr, uint16_t mod_id, uint16_t cid, uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(DUMMY_2_BYTE_OP, 8);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_sub_param param = {
        .status = status,
        .elem_addr = elem_addr,
        .expect_sub = &sub_addr,
        .mod_id = mod_id,
        .cid = cid,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_SUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, op);
    net_buf_simple_add_le16(msg, elem_addr);
    net_buf_simple_add_le16(msg, sub_addr);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        err = 0;
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_sub_add(u16_t net_idx, u16_t addr, u16_t elem_addr,
                            u16_t sub_addr, u16_t mod_id, u8_t *status)
{
    return mod_sub(OP_MOD_SUB_ADD, net_idx, addr, elem_addr, sub_addr,
                   mod_id, CID_NVAL, status);
}

int bt_mesh_cfg_mod_sub_add_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                u16_t sub_addr, u16_t mod_id, u16_t cid,
                                u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub(OP_MOD_SUB_ADD, net_idx, addr, elem_addr, sub_addr,
                   mod_id, cid, status);
}

int bt_mesh_cfg_mod_sub_del(u16_t net_idx, u16_t addr, u16_t elem_addr,
                            u16_t sub_addr, u16_t mod_id, u8_t *status)
{
    return mod_sub(OP_MOD_SUB_DEL, net_idx, addr, elem_addr, sub_addr,
                   mod_id, CID_NVAL, status);
}

int bt_mesh_cfg_mod_sub_del_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                u16_t sub_addr, u16_t mod_id, u16_t cid,
                                u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub(OP_MOD_SUB_DEL, net_idx, addr, elem_addr, sub_addr,
                   mod_id, cid, status);
}

int bt_mesh_cfg_mod_sub_overwrite(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                  u16_t sub_addr, u16_t mod_id, u8_t *status)
{
    return mod_sub(OP_MOD_SUB_OVERWRITE, net_idx, addr, elem_addr,
                   sub_addr, mod_id, CID_NVAL, status);
}

int bt_mesh_cfg_mod_sub_overwrite_vnd(u16_t net_idx, u16_t addr,
                                      u16_t elem_addr, u16_t sub_addr,
                                      u16_t mod_id, u16_t cid, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub(OP_MOD_SUB_OVERWRITE, net_idx, addr, elem_addr,
                   sub_addr, mod_id, cid, status);
}

static int mod_sub_va(u32_t op, u16_t net_idx, u16_t addr, u16_t elem_addr,
                      const u8_t label[16], u16_t mod_id, u16_t cid,
                      u16_t *virt_addr, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(DUMMY_2_BYTE_OP, 22);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_sub_param param = {
        .status = status,
        .elem_addr = elem_addr,
        .sub_addr = virt_addr,
        .mod_id = mod_id,
        .cid = cid,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_SUB_STATUS);

    if(err) {
        goto done;
    }

    BT_DBG("net_idx 0x%04x addr 0x%04x elem_addr 0x%04x label %s",
           net_idx, addr, elem_addr, label);
    BT_DBG("mod_id 0x%04x cid 0x%04x", mod_id, cid);
    bt_mesh_model_msg_init(msg, op);
    net_buf_simple_add_le16(msg, elem_addr);
    net_buf_simple_add_mem(msg, label, 16);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_sub_va_add(u16_t net_idx, u16_t addr, u16_t elem_addr,
                               const u8_t label[16], u16_t mod_id,
                               u16_t *virt_addr, u8_t *status)
{
    return mod_sub_va(OP_MOD_SUB_VA_ADD, net_idx, addr, elem_addr, label,
                      mod_id, CID_NVAL, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_va_add_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                   const u8_t label[16], u16_t mod_id,
                                   u16_t cid, u16_t *virt_addr, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub_va(OP_MOD_SUB_VA_ADD, net_idx, addr, elem_addr, label,
                      mod_id, cid, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_va_del(u16_t net_idx, u16_t addr, u16_t elem_addr,
                               const u8_t label[16], u16_t mod_id,
                               u16_t *virt_addr, u8_t *status)
{
    return mod_sub_va(OP_MOD_SUB_VA_DEL, net_idx, addr, elem_addr, label,
                      mod_id, CID_NVAL, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_va_del_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                   const u8_t label[16], u16_t mod_id,
                                   u16_t cid, u16_t *virt_addr, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub_va(OP_MOD_SUB_VA_DEL, net_idx, addr, elem_addr, label,
                      mod_id, cid, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_va_overwrite(u16_t net_idx, u16_t addr,
                                     u16_t elem_addr, const u8_t label[16],
                                     u16_t mod_id, u16_t *virt_addr,
                                     u8_t *status)
{
    return mod_sub_va(OP_MOD_SUB_VA_OVERWRITE, net_idx, addr, elem_addr,
                      label, mod_id, CID_NVAL, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_va_overwrite_vnd(u16_t net_idx, u16_t addr,
        u16_t elem_addr, const u8_t label[16],
        u16_t mod_id, u16_t cid,
        u16_t *virt_addr, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_sub_va(OP_MOD_SUB_VA_OVERWRITE, net_idx, addr, elem_addr,
                      label, mod_id, cid, virt_addr, status);
}

int bt_mesh_cfg_mod_sub_get(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                            uint16_t mod_id, uint8_t *status, uint16_t *subs,
                            size_t *sub_cnt)
{
    return mod_member_list_get(OP_MOD_SUB_GET, OP_MOD_SUB_LIST, net_idx,
                               addr, elem_addr, mod_id, CID_NVAL, status,
                               subs, sub_cnt);
}

int bt_mesh_cfg_mod_sub_get_vnd(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                                uint16_t mod_id, uint16_t cid, uint8_t *status,
                                uint16_t *subs, size_t *sub_cnt)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_member_list_get(OP_MOD_SUB_GET_VND, OP_MOD_SUB_LIST_VND,
                               net_idx, addr, elem_addr, mod_id, CID_NVAL,
                               status, subs, sub_cnt);
}

static int mod_pub_get(uint16_t net_idx, uint16_t addr, uint16_t elem_addr,
                       uint16_t mod_id, uint16_t cid,
                       struct bt_mesh_cfg_mod_pub *pub, uint8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_MOD_PUB_GET, 6);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_pub_param param = {
        .mod_id = mod_id,
        .cid = cid,
        .elem_addr = elem_addr,
        .status = status,
        .pub = pub,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_PUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_MOD_PUB_GET);
    net_buf_simple_add_le16(msg, elem_addr);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_pub_get(u16_t net_idx, u16_t addr, u16_t elem_addr,
                            u16_t mod_id, struct bt_mesh_cfg_mod_pub *pub,
                            u8_t *status)
{
    return mod_pub_get(net_idx, addr, elem_addr, mod_id, CID_NVAL,
                       pub, status);
}

int bt_mesh_cfg_mod_pub_get_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                u16_t mod_id, u16_t cid,
                                struct bt_mesh_cfg_mod_pub *pub, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_pub_get(net_idx, addr, elem_addr, mod_id, cid, pub, status);
}

static int mod_pub_set(u16_t net_idx, u16_t addr, u16_t elem_addr,
                       u16_t mod_id, u16_t cid,
                       struct bt_mesh_cfg_mod_pub *pub, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_MOD_PUB_SET, 13);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct mod_pub_param param = {
        .mod_id = mod_id,
        .cid = cid,
        .elem_addr = elem_addr,
        .status = status,
        .pub = pub,
    };
    int err;
    err = cli_prepare(&param, OP_MOD_PUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_MOD_PUB_SET);
    net_buf_simple_add_le16(msg, elem_addr);
    net_buf_simple_add_le16(msg, pub->addr);
    net_buf_simple_add_le16(msg, (pub->app_idx | (pub->cred_flag << 12)));
    net_buf_simple_add_u8(msg, pub->ttl);
    net_buf_simple_add_u8(msg, pub->period);
    net_buf_simple_add_u8(msg, pub->transmit);

    if(cid != CID_NVAL) {
        net_buf_simple_add_le16(msg, cid);
    }

    net_buf_simple_add_le16(msg, mod_id);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_mod_pub_set(u16_t net_idx, u16_t addr, u16_t elem_addr,
                            u16_t mod_id, struct bt_mesh_cfg_mod_pub *pub,
                            u8_t *status)
{
    return mod_pub_set(net_idx, addr, elem_addr, mod_id, CID_NVAL,
                       pub, status);
}

int bt_mesh_cfg_mod_pub_set_vnd(u16_t net_idx, u16_t addr, u16_t elem_addr,
                                u16_t mod_id, u16_t cid,
                                struct bt_mesh_cfg_mod_pub *pub, u8_t *status)
{
    if(cid == CID_NVAL) {
        return -EINVAL;
    }

    return mod_pub_set(net_idx, addr, elem_addr, mod_id, cid, pub, status);
}

int bt_mesh_cfg_hb_sub_set(u16_t net_idx, u16_t addr,
                           struct bt_mesh_cfg_hb_sub *sub, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_HEARTBEAT_SUB_SET, 5);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct hb_sub_param param = {
        .status = status,
        .sub = sub,
    };
    int err;
    err = cli_prepare(&param, OP_HEARTBEAT_SUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_HEARTBEAT_SUB_SET);
    net_buf_simple_add_le16(msg, sub->src);
    net_buf_simple_add_le16(msg, sub->dst);
    net_buf_simple_add_u8(msg, sub->period);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_hb_sub_get(u16_t net_idx, u16_t addr,
                           struct bt_mesh_cfg_hb_sub *sub, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_HEARTBEAT_SUB_GET, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct hb_sub_param param = {
        .status = status,
        .sub = sub,
    };
    int err;
    err = cli_prepare(&param, OP_HEARTBEAT_SUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_HEARTBEAT_SUB_GET);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_hb_pub_set(u16_t net_idx, u16_t addr,
                           const struct bt_mesh_cfg_hb_pub *pub, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_HEARTBEAT_PUB_SET, 9);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV_REMOTE,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct hb_pub_param param = {
        .status = status,
    };
    int err;
    err = cli_prepare(&param, OP_HEARTBEAT_PUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_HEARTBEAT_PUB_SET);
    net_buf_simple_add_le16(msg, pub->dst);
    net_buf_simple_add_u8(msg, pub->count);
    net_buf_simple_add_u8(msg, pub->period);
    net_buf_simple_add_u8(msg, pub->ttl);
    net_buf_simple_add_le16(msg, pub->feat);
    net_buf_simple_add_le16(msg, pub->net_idx);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

int bt_mesh_cfg_hb_pub_get(u16_t net_idx, u16_t addr,
                           struct bt_mesh_cfg_hb_pub *pub, u8_t *status)
{
    struct os_mbuf *msg = BT_MESH_MODEL_BUF(OP_HEARTBEAT_PUB_GET, 0);
    struct bt_mesh_msg_ctx ctx = {
        .net_idx = net_idx,
        .app_idx = BT_MESH_KEY_DEV,
        .addr = addr,
        .send_ttl = BT_MESH_TTL_DEFAULT,
    };
    struct hb_pub_param param = {
        .status = status,
        .pub = pub,
    };
    int err;
    err = cli_prepare(&param, OP_HEARTBEAT_PUB_STATUS);

    if(err) {
        goto done;
    }

    bt_mesh_model_msg_init(msg, OP_HEARTBEAT_PUB_GET);
    err = bt_mesh_model_send(cli->model, &ctx, msg, NULL, NULL);

    if(err) {
        BT_ERR("model_send() failed (err %d)", err);
        cli_reset();
        goto done;
    }

    if(!status) {
        cli_reset();
        goto done;
    }

    err = cli_wait();
done:
    os_mbuf_free_chain(msg);
    return err;
}

s32_t bt_mesh_cfg_cli_timeout_get(void)
{
    return msg_timeout;
}

void bt_mesh_cfg_cli_timeout_set(s32_t timeout)
{
    msg_timeout = timeout;
}

#endif
